Patent US4259403A successfully refreshed from Google Patents.
US4259403A
Expired / Lapsed
US
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Cured fibers coated with adhesion promoting additives for ethylene-propylene-nonconjugated diene elastomers
Assignee: Uniroyal Chemical Co Inc
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Filing: 1979-01-16
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Granted: 1981-03-31
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Expires: 1999-01-16
Abstract
Abstract An acid of the formula A--COOH) x , or an anhydride thereof, wherein x is an integer of 1 or 2, wherein the acid groups are vicinal if x is 2, and A is phenyl, C 2 -C 10 alkylene, C 2 -C 10 alkenylene, C 6 -C 10 bridged or nonbridged cycloalkylene or cylcoalkenylene, with the proviso that A is C 1 -C 6 alkyl if x is 1, renders ethylene-propylene-nonconjugated diene elastomers more adherent to fibers that have been treated with a resorcinol-formaldehyde-latex dip when said elastomers are cured directly onto said fibers.
Inventors
- 👤 Richard W. Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2915; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/296; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
169 words
A composition comprising an ethylene-propylene-non-conjugated diene elastomer, 0.5 to 5.0 parts per hundred by weight of sulfur, based on the weight of said elastomer, 0.1 to 3.5 parts per hundred by weight, based on the weight of said elastomer of an accelerator, and 1.0 to 5.0 parts per hundred by weight of an additive selected from an acid of the formula A(--COOH) x or an anhydride thereof, wherein x is an integer of 1 or 2 and wherein if X is 2 the acid groups are vicinal and A is phenyl, C 2 -C 10 alkylene, C 2 -C 10 alkenylene, C 6 -C 10 bridged or non bridged cycloalkylene, or cycloalkenylene, and if X is 1, A is C 1 -C 6 alkyl, said composition also comprising 0.1 to 1.0 parts per hundred by weight, based on the weight of said elastomer, of cobalt or copper in the form of a cobalt or copper salt selected from the group consisting of copper naphthenate, cobalt naphthenate and cobalt sulfate.
Claim 2
Dependent Claim
169 words
A composition comprising an ethylene-propylene-non-conjugated diene elastomer, 0.5 to 5.0 parts per hundred by weight of sulfur, based on the weight of said elastomer, 0.1 to 3.5 parts per hundred by weight, based on the weight of said elastomer of an accelerator, and 1.0 to 5.0 parts per hundred by weight of an additive selected from an acid of the formula A(--COOH) x or an anhydride thereof, wherein x is an integer of 1 or 2 and wherein if X is 2 the acid groups are vicinal and A is phenyl, C 2 -C 10 alkylene, C 2 -C 10 alkenylene, C 6 -C 10 bridged or non bridged cycloalkylene, or cycloalkenylene, and if X is 1, A is C 1 -C 6 alkyl, said composition also comprising 0.1 to 1.0 parts per hundred by weight, based on the weight of said elastomer, of cobalt or copper in the form of a cobalt or copper salt selected from the group consisting of copper naphthenate, cobalt naphthenate and cobalt sulfate.
Claim 3
Dependent Claim
38 words
A method of bonding an ethylene-propylene-nonconjugated diene elastomer to fibers that have been treated with a resorcinol-formaldehyde-latex dip comprising preparing a composition as claimed in claim 1, applying said composition to said fibers and curing the resulting combination.
Claim 4
Dependent Claim
18 words
A method as claimed in claim 2, wherein said additive is 5-norbornene-2,3-dicarboxylic anhydride, 5-norbornene-2,3-dicarboxylic acid or cis-4-cyclohexene-1,2-dicarboxylic anhydride.
Claim 5
Dependent Claim
62 words
A method as claimed in claim 2, wherein said elastomer comprises from 30 to 80 percent by weight, based on the weight of said elastomer, of ethylene, from 20 to 70 percent by weight, based on the weight of said elastomer, of propylene, and from 2 to 25 percent by weight, based on the weight of said elastomer, of a non-conjugated diene.
Claim 6
Dependent Claim
20 words
A method as claimed in claim 2, wherein the nonconjugated diene component of said elastomer is 5-ethylidene-2-norbornene, dicyclopentadiene, or 1,4-hexadiene.
Claim 7
Dependent Claim
14 words
A method as claimed in claim 2, wherein the accelerator is a thiazole accelerator.
Claim 8
Dependent Claim
16 words
A method as claimed in claim 2, wherein the cure temperature is 275° to 400° F.
Claim 9
Dependent Claim
16 words
A method as claimed in claim 2, wherein the cure time is 5 to 120 minutes.
Claim 10
Dependent Claim
13 words
A method as claimed in claim 2, wherein the sulfur is elemental sulfur.
Claim 11
Dependent Claim
17 words
A method as claimed in claim 2, wherein the sulfur is provided by a sulfur donor system.
Claim 12
Dependent Claim
36 words
A cured composite comprising a first layer of a plurality of fibers which are coated with the dried residue of a resorcinol-formaldehyde-latex dip adhered to a second layer comprising a composition as claimed in claim 1.
Claim 13
Dependent Claim
16 words
A composite according to claim 11, wherein the sulfur is provided by a sulfur donor system.
Claim 14
Dependent Claim
23 words
A method according to any one of claim 2, 3, or 5-11, wherein said salt is cobalt naphthenate, copper naphtenate, or cobalt sulfate.
Claim 15
Dependent Claim
17 words
A composite according to claim 11, wherein said additive is 5-nonbornene-2,1-dicarboxylic anhydride, 5-norbornene-2,3-dicarboxylic acid or cis-4-cyclohexene-1,2-dicarboxylic anhydride.
Claim 16
Dependent Claim
61 words
A composite according to claim 11, wherein said elastomer comprises from 30 to 80 percent by weight, based on the weight of said elastomer, of ethylene, from 20 to 70 percent by weight, based on the weight of said elastomer, of propylene, and from 2 to 25 percent by weight, based on the weight of said elastomer, of a non-conjugated diene.
Claim 17
Dependent Claim
19 words
A composite according to claim 11, wherein the nonconjugated diene component of said elastomer is 5-ethylidene2-norbornene, dicyclopentadiene, or 1,4-hexadiene.
Claim 18
Dependent Claim
13 words
A composite according to claim 11, wherein the accelerator is a thiazole accelerator.
Claim 19
Dependent Claim
12 words
A composite according to claim 11, wherein the sulfur is elemental sulfur.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |